Malicious PDF — malware analysis report

Static analysis result for SHA-256 b081c7b5bcc4f5ed…

MALICIOUS

PDF

46.1 KB Created: 2020-08-12 07:07:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab479f728feb6450b6e3f4904a189036 SHA-1: 18d6d86dd04c6c65925c487262c290ca5ca1e692 SHA-256: b081c7b5bcc4f5ed95a3ca47345593cbea2837ae9fa9f70ae71ae8c72b920d9e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a malicious redirector at 'ttraff.cc', which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, indicating a social engineering attempt to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=chemistry+notes+for+class+11+pdf+file In PDF document text
    • http://files.nmoc.co.uk/uploads/1/3/1/3/131383727/vaxemomurewipi.pdfIn PDF document text
    • http://xatinis.wolverine-restoration.com/uploads/1/3/1/1/131163635/4093176.pdfIn PDF document text
    • http://files.streamlineacc.com/uploads/1/3/1/4/131437676/3607112.pdfIn PDF document text
    • http://files.hemlockcanoe.com/uploads/1/3/1/4/131482931/liripisapatugu_navuvirurikixuv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/delete_a_retweet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57355052908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8600/2838/files/gegirolumifis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3071/6326/files/gotetuxizonexusezuxaworap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xibirinadinabamagumib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4971/2807/files/47817608427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/paxowaworaxisulupiwanofit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/doginarufegedatosedemox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1267/5990/files/52339768650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4705/0661/files/mesazisaditefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0455/8488/files/star_trek_online_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1684/5469/files/47483000439.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B2 5452 bytes
SHA-256: 602c83c7c974e2754fa5fa28c6865e3718f768e9eb2720c462ba02f3f8f939b4
font_01_sfnt_off0000881e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x881E 10248 bytes
SHA-256: e16309b75c8316b3f3175931e78a6594e7ea533778d2d7810717b97895dea3d2

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